Cultivator.



G. S. CORKH-ILL.v

CULTIVATOR. APPLICATION FILED AUG. 2d, 1913.'.

Patented Julyf 14,1914;

2 SEEE'lS--SHEET 2.

Q Oj/O Gum/m43.,

, movement and means will chantes' s. conmutador oivraao, -canrroaurafconnivencia;

rabaste.,

Specification of LettersflPatent. l Patto/antw@ July 149 itl-@i140appii'atioa and augastac, alla; serial at. 785,751.

To all whom Lm/ay concern i Beit known that ll, CHARLES citizen of theUnited States, residinr at 0utarimin the county ofSan Bernardino andlSlt-ate of California, rhave invented certain S.` Connell-Lr,

l.new and useful improvements in vCultivators, of which the following isa specification. .A

lhis invention/relates to cultivators, and its primary object is .toprovide aultivator the teeth of which will be permitted to shiftlaterally automatically so that. the dirt will be thrown up to andaround the roots of the plants, and injuryto the plants will be avoided.n'

The invention also seeks to provide a cultivator in which a gang ofteeth will. be so mounted as to have inde endent lateral e provided toholdthe teeth yieldably in the normal position.

@ther incidental objects will appear as the description proceeds, andthe invention consists in certain novel features whichjvill be pointedout in the' claimsv following the detailed description.

The invention is fully illustrated in the' accompanying drawings, inwhich:

Figure 1 is a. perspective View of a pbr# tion of a cultivator embodyingmy present invention; Fig. 2 is a plan View of the same; F ig. 3 is adetail side elevation of one of the cultivator beams with its attachedtooth or shovel.

lln carrying out. my invention, I employ a frame 1 which may oe of anypreferred construction. and is mounted upon wheels,v onev of which isshown at 2, so that it may be readily'drawn 'over the field. Theparticular form of this wheel-supported frame is` immaterial and formsno partof my invention and the illustration ofthe same is someL whatconventional and intended merely to more clearlydisclose the operation'of .my improvements. Mounted upon this fram-e in any convenient manneris a rockingirod or shaft 3 which constitutes the cultivator head, andpivoted to the said shaft or rod are a series of yokes or couplings 4which may have movement laterallyor in a horizontal plane independentlyofthe shaft but can have no vertical movement except when the shaft isrocked. To each coupling or yoke 4 is secured a cultivator beam 5 havinga standard 6 secured to and dependinoa vfrom its rear end, andto thesaid standar is secureda tooth or' shovel rbotany preferred design.

Disposed @transversely to and efe tendingthrough the gang pflcultirvator beams is a stayrodJl 8 having its ends loosely mounted inthe beams at the ends rof Athe gang and restrained againstdetachmentfrom the beaans by aunt or other convenient stop 9.; `Fittedaround the.said-.stayfrodbetween each ,pair of ,cultivator beams is, acoiled spring. 10, which hasits ,ends bearing against said beams, tonormally hold the `-beams parallelwith eachwother and at a right angleto `the rock shaft. Secured to the rock shaft at plan Aintermedi.atepoint of its lengthl is a rear- Qwiardly'f eatendmg arm' 11 which isconnected "by acham, or its equivalent, 12, with the rearwardlyextending crank arm 13 of a controlling lever 14 which is looselymounted upon a fulcrum rod or beam lvsecured upon or forming a part ofthe supporting frame. A holding segment 1G is fixed upon this beam orrod 15` adjacent the lever and a. latch 17 mounted upon the lever isadapted to en gage the said segment so as to hold the lever in a setposition. n

lt is thought the operation of improved cultivator will be readilyunderstood..` As the machine is drawn over the field they gang ofcultivator teeth will take into the/ earth and turn the loose surfacesoil onto l,

the roots of the plants. Should any one tooth tend to ride over a plantowing to the plant being out of line with adjacent'plants, theengagement of the tooth with the plant will cause the tooth to turnaside and pass around the plant, this action being permissible by reasonof the pivotal connection of the beam with the head or rock shaft 3, aswill." y l be understood-on reference to Fig. 2, in which one of thebeams is shown deflect/ed laterally.. When the beam is thus shiftedlaterally, the spring at that side toward which the beam. swings will becompressed and as soon as the plant has been cleared the springl willexpand and return the beam to'move the machine from onev field to another, the lever 14 is manipulated so asl to- `to its normal position.Should it be desired of cultivators extending rearwar .in cultivatingfeldsLsuch as alfalfa to the position of the plants,'and, after theplants have been cleared, will automatically return to thenormalw-position. The cilltivator tooth or shovel may be of anywellknown or preferred construction and the dov'i vice will be found`exceedingly advantageous elds.: in which the seed is' sown broadcast.-The machine will be found desirable'invlocalities `where the rain fallis slight and artificial irrigation is employed as it may be usedfrequently Without fear of harming "the young plants and the soil,consequently,`. .kept in a loose condition to receive and hold moisture.l

What I claim isz- '1" 1. The combination of a head, a" lurality dllyfrom the said head normally in parallel relation and independentlyattached to said `head by vertical* pivots, a' retaining rody looselymounted in and extending transversely through the severalloultivatolsAin rear of said head, and springs coiled around said 4rod between andbearing `against adjacent vcultivators. 5.2r A' cultivator comprising arock shaft,

a plurality of couplings independently con.- nflied to the said rockshaft by vertical pivots andextending rearwardly therefrom, cultivatorbeams secured rigidly to the respeotive couplings and normally inparallel relation, a retaining rod extending transversely throughthelbeams in rear of the Couplings, springs coiled around the retainingl, rodv between and bearing against ad]alcent

